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The compact and extremely easy to use VT1000 is a fully automatic valve tester, which performs a wide range of tests quickly and accurately. The benefits of using the VT1000 are clear and wide reaching; users can quickly and simply match and test valves, plus receive a reliable health check as to whether their valves are good, bad or worn.
Orange Amps developed the world's first fully automatic, portable, digital valve tester, the VT1000, to make it easy to test amp valves. Until now testing valves with little or no knowledge of valve theory was difficult, expensive and often unreliable.

BIASMASTER System BM4 Measures BIAS current of any 6L6GC, 6550, EL34, 6V6GT, 5881, KT66, KT88, KT90, KT100, KT120, 7027A etc. in your amp. Includes 4 octal probes (2x S-TBMA2) and english/german operation manual.
The BiasMaster™ allows to monitor the bias current savely and easily. While adjusting the Bias control pot of your amp the BiasMaster™ does show the actual result.

BIASMASTER System BM4-EL84 Measures BIAS current of any EL84 etc. in your amp. Includes 4 noval probes (2x S-TBMA2-EL84) and english/german operation manual.
The BiasMaster™ allows to monitor the bias current safely and easily. While adjusting the Bias control pot of your amp the BiasMaster™ does show the actual result. This lets you set and evaluate all reasonable biasing range your amp and tubes offers to find and set your personal perfect choice.
The Bias setting has a dramatic impact on the amp's response, break-up and dynamic character.

Compact solid state RF signal generator designed for the hobbyist, service bench and technical instruction. The generator is most suitedfor checking and aligning the IF circuit and tuners in AM, FM, and TV's. 100KHz to 150MHz in 6 bands and up to 450MHz on third harmonics. 5.9" high x 9.8" wide x 5.1" deep. Features: